Halo and Mass Effect Crossovers
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This, Our Galaxy by Jocson reviews
A short history of the Orion Arm of the Milky Way Galaxy, from the perspective of those existing within Systems Alliance space, submitted as part of my qualifying project on governmental analysis. July 25, 2585.
Rated: T - English - Sci-Fi/Friendship - Chapters: 2 - Words: 7,752 - Reviews: 10 - Favs: 20 - Follows: 27 - Published: 12/31/2019 - Complete
Silver Lined Clouds by Barrybumhead reviews
Humanity has lost the Human-Covenant war, Sent through time and dimensions. Humanity has a unifying hate behind them. How will this new, bitter and darker humanity react when they realise that they've been building up and waiting for the wrong council of species? Or perhaps something worse?
Rated: T - English - Sci-Fi - Chapters: 2 - Words: 6,190 - Reviews: 27 - Favs: 139 - Follows: 209 - Updated: 12/19/2019 - Published: 10/25/2016 - T. Hood, Cortana
Plight of the Rabbit by TheDscott94 reviews
In which a Spartan is left stranded in a reality not their own. Not the usual suspect however.
Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 1,531 - Reviews: 4 - Favs: 31 - Follows: 49 - Updated: 11/26/2019 - Published: 2/25/2019 - Kelly-087, J. Garson
Revelations by REDSTORMAR555 reviews
Decades have passed since the devastation of the Human-Covenant War, with both factions forging new bonds with each other and other foreign powers that reach the galactic stage. Years after meeting a species remarkably similar to humanity, a relic is found in the icy moons of Harvest. Little does the galaxy know that this find would ignite wars for both power, and survival.
Rated: M - English - Adventure/Sci-Fi - Chapters: 5 - Words: 10,887 - Reviews: 189 - Favs: 492 - Follows: 594 - Updated: 10/7/2019 - Published: 1/16/2013
A Feeling of Importance by LebendenToten reviews
Shoulda changed this last update but forgot, story is discontinued as I plan on re-writing it, rewrite will be posted on my profile under "A Feeling of Importance MKII". A lot changes over six years, maturity and writing skill included.
Rated: T - English - Adventure/Friendship - Chapters: 23 - Words: 38,917 - Reviews: 180 - Favs: 304 - Follows: 389 - Updated: 9/30/2019 - Published: 11/6/2014 - Master Chief/John-117, C. Halsey, OC, J. Garson
Halo: Second Contact by Helezhelm reviews
What if Halo universe collides with Mass Effect universe! How would System Alliance among Council Citadel races react to another human race in other galaxy? We only will find out in upcoming fanfiction!
Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 5,934 - Reviews: 70 - Favs: 222 - Follows: 269 - Updated: 9/25/2019 - Published: 4/29/2015
Spartan and Wolf: Realities Collide by Arisentactica reviews
Chief and Cortana drift to a forerunner planet in the remains of the Forward Unto Dawn. In another timeline, in another part of the Galaxy, an admiral is the lone survivor of a costly battle. Will they meet? Will they become allies or bitter enemies? Where will they go and what will they do? M for blood, gore, and language. DROPPED!
Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 36,109 - Reviews: 34 - Favs: 154 - Follows: 210 - Updated: 9/18/2019 - Published: 10/11/2018 - Master Chief/John-117, Cortana, Librarian, OC
The UNSC and the Citadel Council by Lord Okkirke reviews
What if it had not been the Systems Alliance that made made first contact with the Citadel Species but a UNSC that never encountered the Covenant? The Story begins in 2607 CE(Mass Effect timeline is adjusted by 450 years to line up properly) with the First Contact War.
Rated: T - English - Chapters: 1 - Words: 6,176 - Reviews: 44 - Favs: 190 - Follows: 300 - Published: 9/14/2019
Circuitry by obliviousbushtit reviews
Redemption: a notion all too unrealistic to attain. Thel 'Vadam was well aware the first time the Gravemind drilled it into his head. Through unthinkable circumstances, the Arbiter and Master Chief are thrown into a reality not of their own. Unwittingly the master of the Reapers or not, Thel must find within him the ability to atone. 'Haps a certain Quarian may be able to help...
Rated: T - English - Adventure/Friendship - Chapters: 18 - Words: 52,658 - Reviews: 52 - Favs: 166 - Follows: 262 - Updated: 9/7/2019 - Published: 4/6/2019 - Master Chief/John-117, Arbiter, Tali'Zorah, Legion
The Grave Effect by SaibotReaper Productions reviews
Following the destruction of The Covenant Empire and Truth, The Gravemind had one last trick up it's sleeve for survival fusing it's entire consciousness with a human host ensuring it's survival. Now a lone marine and The Gravemind venture out beyond the galaxy they once knew to a somewhat familiar yet strange galaxy that is brimming with new possibilities. (On Hiatus)
Rated: M - English - Sci-Fi/Adventure - Chapters: 23 - Words: 91,107 - Reviews: 143 - Favs: 312 - Follows: 389 - Updated: 7/27/2019 - Published: 5/16/2017 - Gravemind, OC, J. Garson, Garrus V.
Assorted Dysfunctional Plot Bunnies by RhysThornbery reviews
Basically a place to store my non-Harry Potter plot bunnies.
Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 37,723 - Reviews: 14 - Favs: 37 - Follows: 45 - Updated: 7/14/2019 - Published: 11/12/2018
The Reclaimer Effect by Thorthemighty321 reviews
It's the eve of the centennial anniversary of the beginning of the Human-Covenant War. A mere twenty years after the discovery of Prothean Ruins on Mars. A simple case of poor communication leads to a brief but violent conflict erupting and leads to the United Earth Government and it's military arm the UNSCDF coming onto the Galactic Stage of politics, mysteries, and adventures.
Rated: T - English - Adventure - Chapters: 17 - Words: 174,265 - Reviews: 659 - Favs: 1,136 - Follows: 1,592 - Updated: 6/27/2019 - Published: 2/28/2018
Shadow Contingency (v2) by Andrithir reviews
We used to dream about our place in the stars. Now we worry about our place in the void. The War has made us feel alone, desperate, and paranoid. So I come before you and beg you not to make an enemy of us, because if you do, for the next thousand years, the galaxy will talk about how we wiped you out.
Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 17,299 - Reviews: 28 - Favs: 136 - Follows: 253 - Updated: 6/17/2019 - Published: 6/10/2019 - Master Chief/John-117, Shepard
Mass Effect: The New Journey by Arashi the Solar Phoenix reviews
During a Joint Deployment, the UNSC Infinity and Her Sangheili allies are suddenly thrown into a new Galaxy, and end up near Charon before the Systems Alliance discovers the Charon Relay. Alliances are forged and how will the galaxy react to an aggressive humanity that not only doesn't use Mass Effect technology, but will not let anyone stand in their way of expansion? AU PreME1
Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 190,674 - Reviews: 1376 - Favs: 2,425 - Follows: 2,955 - Updated: 6/11/2019 - Published: 1/26/2014
Once more unto the breach( Codex) by n7kairos reviews
Codex for a new story- Once more unto the breach( coming soon)
Rated: K - English - Sci-Fi/Adventure - Chapters: 9 - Words: 7,135 - Reviews: 32 - Favs: 12 - Follows: 10 - Updated: 6/8/2019 - Published: 8/10/2018 - Shepard, Miranda L., C. Halsey, Master Chief/John-117
Once More unto the breach by n7kairos reviews
The Normandy and its crew are flung across into the Halo Universe, where they must survive and find their direction, all the while fending off Covenant, ONI, Flood, and more.
Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 17,176 - Reviews: 18 - Favs: 24 - Follows: 40 - Updated: 6/8/2019 - Published: 1/19/2019 - Shepard, A. J. Johnson, Cortana
The Spartan Effect by Gatekeeper333 reviews
Everyone's favorite Spartan is looking for a new purpose, lucky for him, the Commander his happy to oblige. (5-23-19 Info: On Hiatus after Chapter 45. Will update with schedule after life is in order.)
Rated: T - English - Chapters: 45 - Words: 495,928 - Reviews: 1741 - Favs: 2,719 - Follows: 3,264 - Updated: 5/23/2019 - Published: 3/27/2011 - Master Chief/John-117, Tali'Zorah, Miranda L., Shepard
Timeline for Olympic Effectt: Part One by Corda Dracon reviews
This story is going to be undergoing a rewrite.
Rated: M - English - Adventure/Romance - Chapters: 1 - Words: 5,408 - Reviews: 12 - Favs: 28 - Follows: 39 - Published: 5/23/2019 - SPARTAN-B312/Noble Six, Liara T'Soni - Complete
HALO Mass convergence by SapphireDawn11709 reviews
Two Universe collide after the Forerunners fall and the Reapers return, will the two branches of Humanity placed in their respective Systems by a Forerunner Monitor unite or fall, only time will tell in this epic clash. When the UNSC Exploration and Research Vessel Light of Sol discover a strange artifact, they are opened up to the rest of the Galaxy after millennia of isolation.
Rated: M - English - Sci-Fi - Chapters: 22 - Words: 75,292 - Reviews: 287 - Favs: 620 - Follows: 787 - Updated: 5/23/2019 - Published: 9/18/2016 - Master Chief/John-117, Cortana, J. Garson, Tali'Zorah
Operation Noah by Azrael The Deplorable reviews
Join Black and Blue team on a journey on Maethrillian to help end a galactic genocide of a neighboring galaxy to secure Forerunner artifacts, tech, and ships. Will they succeed in ending the Reaper menace alongside with the help of Commander Shepard and crew? Or will there be more bodies for the grave? Disclaimer I do not own Halo or Mass Effect.
Rated: M - English - Adventure/Sci-Fi - Chapters: 6 - Words: 57,309 - Reviews: 68 - Favs: 160 - Follows: 224 - Updated: 5/19/2019 - Published: 9/9/2018 - Master Chief/John-117, 049 Abject Testament, J. Garson, Liara T'Soni
The MIA Spartan by IronGiant9000 reviews
They always say that Spartan's are missing in action, but what if that is the reality of Noble Six? Falling into another universe surely didn't happen when he made the sacrifice to blow up the supercarrier, right? Unfortnately that was the case, and he just so happened to bring along 'friends' for the ride to change up the fate of the Milky Way Galaxy. Six's pairing unknown.
Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 3,106 - Reviews: 13 - Favs: 66 - Follows: 89 - Published: 5/7/2019 - SPARTAN-B312/Noble Six, Garrus V., Tali'Zorah, Shepard
A Spartan and a Spectre by W0lfsimien reviews
Following the battle of the arc our favorite spartan finds himself in a different Milky Way, with a whole new enemy to fight. Commander Shepard, Hero of Elysium, on a standard snatch and grab mission suddenly finds a strange man in with stranger weapons and armor, and a new enemy more dangerous than any she could even imagine. A reboot of my previous story.
Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 4,440 - Reviews: 17 - Favs: 79 - Follows: 154 - Updated: 4/24/2019 - Published: 4/6/2019
Mass Effect: Dreams of Stone and Dust - Codex by Jadeflame reviews
The codex for a fanfiction that i am still writing. I just wanted to already post it to save some steps later. All copyrights go to who ever has the claim to them. Inspired by a few other Fanfictions and Games.
Rated: T - English - Chapters: 7 - Words: 11,491 - Reviews: 14 - Favs: 30 - Follows: 34 - Updated: 4/23/2019 - Published: 4/6/2019
MC in ME by W0lfsimien reviews
The story takes place after Halo 3 and in the first Mass Effect game. The Forward unto Dawn drifts through space marking the beginning of a new adventure for Master Chief, in a galaxy he could never have imagined. What happens when the greatest super soldier from one universe meets the rising star future specter of another, read and find out. Constructive criticism appreciated.
Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 17,921 - Reviews: 78 - Favs: 141 - Follows: 213 - Updated: 4/6/2019 - Published: 12/1/2012 - Master Chief/John-117, J. Garson
The Promethean Spartan by ErenJaeger17 reviews
When Master Chief destroyed the Didact's ship, he expected death. Now he is stuck in a new galaxy; with Cortana's legacy and new armor. Can Shepard help the Spartan? Can the Master Chief help save the colonies? Starts at the very end of Halo 4 and in the beginning portion of Mass Effect 2.
Rated: M - English - Adventure - Chapters: 3 - Words: 19,213 - Reviews: 168 - Favs: 751 - Follows: 1,046 - Updated: 3/29/2019 - Published: 7/4/2016 - Master Chief/John-117, J. Garson
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